Adaptive nonlinear direct torque control of sensorless IM drives with efficiency optimization

M. Hajian, J. Soltani, G. A. Markadeh, S. Hosseinnia

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

Efficiency optimization of induction motor (IM) drives is a major subject based on these drives' extensive use in the industry. Among the different proposed methods, a model-based approach (MBA) seems to be the fast one. However, this method needs the motor parameters that must be correctly identified. On the other hand, a search-based approach (SBA) is a parameter-independent method but needs a greater convergence time. In this paper, a novel model-based loss-minimization approach is presented, which is combined with a backstepping direct torque control of the IM drive. An improved search-based method for efficiency optimization is also introduced. The proposed controller is realized in the stationary reference frame and has a fast-tracking capability of rotor flux and electromagnetic torque. Moreover, a sliding-mode rotor-flux observer is introduced, which is employed for simultaneous determination of rotor-flux space vector, rotor speed, and rotor time constant. The proposed control idea is experimentally implemented in real time using a field-programmable gate-array board synchronized with a personal computer. Simulation and experimental results are finally presented to verify the effectiveness of the method proposed.
Original languageEnglish
Pages (from-to)975-985
Number of pages11
JournalIEEE Transactions On Industrial Electronics
Volume57
Issue number3
Early online date21 Aug 2009
DOIs
Publication statusPublished - Mar 2010

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Torque control
Induction motors
Rotors
Fluxes
Backstepping
Vector spaces
Personal computers
Field programmable gate arrays (FPGA)
Torque
Controllers
Industry

Cite this

Adaptive nonlinear direct torque control of sensorless IM drives with efficiency optimization. / Hajian, M.; Soltani, J.; Markadeh, G. A.; Hosseinnia, S.

In: IEEE Transactions On Industrial Electronics, Vol. 57, No. 3, 03.2010, p. 975-985.

Research output: Contribution to journalArticle

Hajian, M. ; Soltani, J. ; Markadeh, G. A. ; Hosseinnia, S. / Adaptive nonlinear direct torque control of sensorless IM drives with efficiency optimization. In: IEEE Transactions On Industrial Electronics. 2010 ; Vol. 57, No. 3. pp. 975-985.
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